| 释义 |
Definition of crenulate in English: crenulateadjective ˈkrɛnjʊleɪtˈkrenyəlit technical (especially of a leaf, shell, or shoreline) having a finely scalloped or notched outline or edge. Compare with crenate Example sentencesExamples - The maximum width of this specimen occurs at the mid-length, and the anterolateral margin is crenulate.
- Growth lines are very finely crenulate in a narrow zone approximately two-thirds the distance from the umbilicus to the periphery, and the shell here has a very weak shoulder.
Synonyms jagged, craggy, rugged, uneven, rough, irregular, broken
Derivatives adjective technical In the course of evolution, besides other modifications, the anterior crenulated hinge plate portion has been reduced. Example sentencesExamples - The edge of the outer lip is crenulated, and usually has a weakly convex profile when viewed from the apertural side of the shell.
- The outer lip is crenulated on its edge, and smooth or weakly denticulate on the inner side.
- These openings are either papillated or crenulated along the external margin.
- The anterior half of the tooth is less crenulated than the posterior half.
noun technical Some species possess only crenulated growth lines, while in others there is a very strong crenulation, causing a spiral ornament. Example sentencesExamples - The crenulations are either dorsally open or represent filled structures.
- Sporadically developed crenulation occurs on some foliation surfaces as small patches of closely spaced wrinkles.
- The enamel in the synclines shows crenulations.
- This elevated structure extends ventrally in order to produce the marginal crenulations in the ventral part of the shell.
Origin Late 18th century: from modern Latin crenulatus, from crenula, diminutive of crena 'notch'. Definition of crenulate in US English: crenulateadjectiveˈkrenyəlit technical (especially of a leaf, shell, or shoreline) having a finely scalloped or notched outline or edge. Compare with crenate Example sentencesExamples - The maximum width of this specimen occurs at the mid-length, and the anterolateral margin is crenulate.
- Growth lines are very finely crenulate in a narrow zone approximately two-thirds the distance from the umbilicus to the periphery, and the shell here has a very weak shoulder.
Synonyms jagged, craggy, rugged, uneven, rough, irregular, broken
Origin Late 18th century: from modern Latin crenulatus, from crenula, diminutive of crena ‘notch’. |